Thank you Florent.
I have the name spelled wrong, I think the correct term is Wallacii, or else that is the only name I see in the CRC catalog.
Do you have any advice on how to choose a dwarf pike species to work with? Are some worse than others for killing their mates? I might pick up a few of these regardless, I currently have a saxatilis for feeding culls, but a dwarf pike would be much more manageable.